1140400524 has 48 divisors (see below), whose sum is σ = 2756113920. Its totient is φ = 366569280.

The previous prime is 1140400517. The next prime is 1140400529. The reversal of 1140400524 is 4250040411.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1140400524.

It is not an unprimeable number, because it can be changed into a prime (1140400529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 382359 + ... + 385329.

It is an arithmetic number, because the mean of its divisors is an integer number (57419040).

Almost surely, 2^1140400524 is an apocalyptic number.

It is an amenable number.

1140400524 is an abundant number, since it is smaller than the sum of its proper divisors (1615713396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1140400524 is a wasteful number, since it uses less digits than its factorization.

1140400524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4110 (or 4108 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 1140400524 is about 33769.8167599411. The cubic root of 1140400524 is about 1044.7662531303.

Adding to 1140400524 its reverse (4250040411), we get a palindrome (5390440935).

The spelling of 1140400524 in words is "one billion, one hundred forty million, four hundred thousand, five hundred twenty-four".